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이천환,이선일,류근원,목영재,Lee Chun-Hwan,Lee Sun-Il,Ryu Keun-Won,Mok Young-Jae 대한위암학회 2001 대한위암학회지 Vol.1 No.3
Purpose: Although gastric carcinomas occur throughout the world and the incidence is on the decrease, they remain the most common type of carcinoma in Korea. Significant advancements in the diagnostics and the surgical treatment of gastric carcinomas have been achieved during the last three decades. The present retrospective study was undertaken to investigate the chronological changes in the clinical features, including clinicopathological findings, operative treatment, and prognosis of gastric carcinomas. Materials and Methods: A total of 1973 patients with a primary gastric adenocarcinoma who had been treated surgically during the period from 1983 to 1998 at the Department of Surgery, Korea University College of Medicine, were divided into two groups to evaluate chronological changes: 1007 patients had been treated during the period from 1983 to 1992 (early period) and 966 patients during the period from 1993 to 1998 (late period). Chronological changes in age, sex, ratio of early gastric cancer (EGC), and resectability were analyzed in all 1973 cases. For the 1755 resected cases, we also studied the chronological changes in the clinicopathological and treatment factors between the early-period (n=894) and the late-period (n=867) groups. Results: There were significant differences between the two periods with regard to age and ratio of EGC: EGC was more frequent in the late period. Univariate analysis of resected cases showed that gross type, tumor size, depth of invasion, UICC stage, and histological type were statistically significant. The analysis of the treatment factors revealed that total gastrectomies and extended lymphadenectomies were more frequent during the late period. The number of lymph nodes dissected was $26.0\pm12.7$ in the early period and $33.4\pm14.1$ in the late period (p<0.01). The 5-year survival rate in all cases was $51.4\%$ in the early period and $55.9\%$ in the late period. The stage-related survival rates (UICC 4th Ed., 1987) in the early vs. the late periods were $92.9\%\;vs.\;95.5\%$ in stage IA, $82.1\%\;vs.\;91.1\%$ in stage IB, $76.5\%\;vs.\;73.1\%$ in stage II, $46.5\%\;vs.\;52.1\%$ in stage IIIA, $14.5\%\;vs.\;33.6\%$ in stage IIIB, and $2.8\%\;vs.\;8.8\%$ in stage IV. There was a statistically significant difference in survival between stage IIIB and IV. Conclusion: These results suggest that the differences in the clinicopathological findings are related primarily to the increased number of early gastric cancer cases in the late period and that the improved survival noted during the late period for in stage IIIB and IV cancers might be related to extended surgery.
이천환 연세대학교 신과대학·연합신학대학원 1993 연세대학교 연신원 목회자 하기 신학세미나 강의집 Vol.- No.13
오늘 목회자 여러분과 자리를 같이하여 예배를 드리고 몇 말씀드리게 된 것을 기쁘고 뜻있게 생각합니다. 이번 세미나의 주제가 <한국 교회의 미래>이기에 저의 설교 역시 그런 맥락에서 <21세기를 향한 한국교회의 지도자>라는 제목을 붙여 보았습니다. 다가오는 새 세기를 위하여 우리 한국교회의 지도자들이 어떤 전망과 준비를 해야 하는가를 함께 생각해 보고 싶습니다. 그러자면 이에 앞서 과거와 오늘의 한국교회를 평가해 보고 정리해야 하겠습니다. 그래야 옳고 건전한 한국교회의 새로운 백년대계를 설계할 수 있을 것입니다.
3리터급 폭스바겐 루포 디젤 차량의 배출가스 및 연비 특성에 관한 연구
이천환(C. H. Lee),김병수(B. S. Kim),임종순(J. S. Im),노기한(K. H. Noh),이호길(H. K. Lee),김성중(S. J. Kim) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
This study include about emission and fuel economy characteristics of the Lupo 3L TDI is the<br/> world's first-ever production-line unit inj ector type 3 liter car. On the results of test, the fuel<br/> economy was below then of volkswagen's reports. But that was very considerable because to<br/> consider the research trend of the vehicle makers, most of all research is focused to reduce<br/> the CO2 and high performance than another advanced vehicle. In case of emission, the test<br/> results was be satisfied with the EURO3 regulation but to be unreliable the EURO4.